Locking attachment for churn-heads



(No Model;) 2 Sheets-Sheet 1. J. MODERMAID. LOOKING ATTACHMENT FOR GHURN HEADS.

No. 459,145. Patented Sept. 8, 1891.

(No Model.) 2 Sheets-Sheet 2.

J. MODERMAID.

LOOKING ATTAGHMBNT FOR OHURN HEADS.

No. 459,145. Patented Sept.8,1891.

UNITED STATES PATENT OFFICE.

JOHN llllCDERMAID, OF ROCKFORD, ILLINOIS.

LOCKING ATTACHMENT FOR CHURN-HEADS.

SPECIFICATION forming part of Letters Patent No. 459,145, dated September 8, 1891.

Application filed December 23, 1890. Serial No. 375,635. (No model.)

To all whom it may concern:

Be it known that I, JOHN MCDERMAID, a citizen of the United States, residing at Rockford, in the county of Vinnebago and State of Illinois, have invented certain new and usefulImprovements in Churns, of which the following is a specification.

This invention relates to improved ears for connecting cover-fastening bails with churns.

This invention also relates to improved lever-cams for locking-such bails for the pun pose of securing the covers of churns thereto when in use.

This invention consists of certain new and useful features of construction and combina tions of parts hereinafterdescribed, and pointed out in the claims.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a top isometric view of the upper portion of a churn provided with my improvements. Fig. 2 is a top plan view of the same. Fig. 3 is a view of the parts shown in the foregoing views, partially in vertical section, at the dotted line X X in Fig. 2, partially in elevation. Fig. f is an isometric view in detail of a portion of the lever-cam shown in the preceding views. Fig. 5 is a vertical section, at the dotted line X X in Fig. 2, of the body portion of one of my improved ears and a fragment of the churn whereto it is secured, parts being shown in section. Fig. 6 is an isometric view of the ears, looking at the side thereof that is in con act with the churn when it is secured thereto. Fig. 7 is a view of the shank-eye of an ear detached from its socket connection therewith.

Like letters of reference indicate corresponding parts throughout the several views.

A is a churn.

A is a ring-head seated in a croze A there in and provided with cover guide-lugs A and an annular bead A", projecting from the upper side thereof.

B is an ear consisting, essentially, of abody portion B and a separable shank-eye B adapted to be securely connected therewith by being mounted in or upon the same. I prefer to construct the ear B in the following manner: The body portion B thereof is provided with a recess or socket B", adapted to admit and engage with the counterpart shank ther prefer to provide the upper ends of the parts B with stay-lugs B, which prevent the same from working loose laterally.

B are bolts for securing the ears B to the churn A.

The ears heretofore used for connecting bails C with churns have been cast ina single piece and have afterward had holes corre sponding to the eyes B of the ears B drilled in the upper ends thereof to receive the ends C of the bails. The eyes of my improved ears are cast therein, the expense of drilling four bail holes or eyes in the ears of each churn made being thereby saved. Moreover, if any of the holes should not happen to be drilled at just about the right angle with its ear, in the old style of cars, or the ends 0 of the bails should chance to be bent at too slight or too great an angle, the cars would bind the bails so that they would not swing freely therein. hen inyimproved ears are used, it does not matter whether the ends 0 of the bails are all bent at the same angle or not. In fact, the ends C may all be bent at different angles and yet the bails C will swing freely in the ears 13", the swivel-joints between the parts B permitting the latter to nicely adjust themselves to accommodate the ends G of the bails O in any position that they may be made to assume, and, as has already been stated, freedom of motion may be less satisfactorily obtained for the bails C by making the eyes B so large as to permit them to swing therein without being bound thereby, and substituting fixed for swiveled connection between the parts B'B but the construction already designated as preferred will obviously be found, to be superior to the equivalent form suggested.

D is a ohurn cover provided with the usual skeleton casing B, the latter having a vertical. tubular stud D centrally mounted thereon and annular packing of cork D to engage with the ring-head A. of the churn.

E is a fulcrum -supporting bolt passed through the cover D and the tubular stud D and is secured in position therein by means of the set-nut E.

F is a fulcrum having a threaded passage extending vertically therethrough to adapt it to engage with the threaded portion of the bolt E to form a vertical and adjustable swivel-joint therewith for the former to revolve upon.

G is a lever-cam consisting of the cam G, provided with the doWnWardly-proj ecting lugs G to prevent the same from being disengaged from the bails 0 while securing the cover on the churn by being revolved, as indicated by the dotted circle in Fig. 2, pivoted to the swiveled fulcrum F by means of the horizontal pivot G and openings G in the cam G, and the lever Gr integral therewith for operating the same. The cam G is divided by a vertical cleft G therein, which admits the fulcrum F, whereto it is pivoted, and embraces the set-nut E, thereby preventing said nut from working loose and also serving as a wrench to remove and replace the sam e when desired.

G is a cork stop inserted into .a suitable socket in the lever G to prevent the latte-r from niarring the cover.

To take up the slack between the bails and cam .or the wear of any of the parts composing the fastening mechanism, elevate the lever to a vertical position and revolve it and the fulcrum Whereto it is swiveled upon the bolt E, as indicated by the dotted circle in Fig. 2, until the slack or wear is taken up,

To release the churn-cover, lift the free end of the lever-cam to the position shown and re-v volve it to the position indicated in Fig. 1. Then swing the bails outward.

The cover guide-lugs A will be found to be highly useful for guiding the cover onto the churn in such a manner that only the middle portion of the lower surface of the ring of cork D can come in contact with the annular head A of the ring-head A, as a liquid-tight joint between the cover and churn is thereby positively assuredacondition attained with difficulty when the ring of cork is placed upon the head of the ring-head in such a manner as not to be concentric therewith.

I claim- 1. A churn-ear consisting of a-hody having an open-sided longitudinal slot peripherally grooved on the closed side, and an eyebolt constructed to enter said slot and having a peripheral flange which engages the groove, whereby the eyebolt'is rotatably held in the body, substantially as and for the purpose set forth.

2. In combination,-the churn,thering-head seated in a croze therein, the ears secured thereto, the bails pivoted to the ears, the cover adapted to fit the ring-head, and the levercain provided with downwardly-projecting JOHN MoDERMAID. Witnesses:

L. L. MoRRIsoN, E. F. DoWLINe. 

